Machine for molding concrete blocks.



Patented Feb. 11, 1913.

2 SHEETS-SHEET 1.

ATTYS- J. n. BAB-B113. MACHINE. PDB. HOLDING GONGRETE BLOCKS.'

APPLIGATIH FILB! SEPT. 27, 1909.

igo zo ATTESQM .fifi/n.5@

J.'D. BARBER.

MACHINE FOR MOLDING CONCRETE BLOCKS. APPpIoATIoN FXLBD SEPT. 27, 1909.

` 1*;052557, Patented Feb.11, 1913.

2 SHEETS-SHEET 2.

14 "'z LA v A'Vrlizs'rv l y @D Jounfl). BARBER Inv-E H 'v QP:

` '17 t ATTYS.

UiaiTEi) sTATEs PATENT -oEEioE JOHN' n.- BARBER, or CLEVELAND, ori'io.

To all whom t may concern:

Be it known that I, JOHN D. BARBER, a citizen of the United States, residing at Cleveland, in the county of Cuyahoga and vState of Ohio, have invented' certain new,

and useful Improvements in Machines for Molding Concrete Blocks, of'which the lfollowing is a specilicat-ion'.

This invention has vreference to a machine for molding interlocking fire proof concrete vchimney blocks, all, substantially as shown and described and inthe Claim. l

In the accompanying drawings Figure 1 is a sectional elevation of the machine lengthwise thereof with the parts in molding position and a block-therein. and 3 are sectional elevations of .portions of chimneys built with my improved blocks and showing dierent forms of blocks as hereinafter described. Fig. 4 is a perspective view of one of the said blocks.- Fig. 5 is a sectional elevation of the machine corresponding to Fig. 1 but with the parts thereof separated and the cement block ready to be removed therefrom. Fig. 6 is .a plan view of the parts complete as shown in Fig. 1. Fg is a side view of a drawn chimney and shows the special blocks made therefor in my machine.

The object of the invention will be seen from the foregoing views, and consists broadly in a machine adapted to produce concretechininey blocks which do away with bricks and flue linings and constitute a complete portion or section of a chimney which is absolutely lire *proof ends tlie said blocks have interlocking or overlapping features on their inside so constructed that one block seats into or upon the other in an overlapped relation and is cemented thereto at the joint, thus sealing the blocks in respect to each other as well as locking them together and making a tire proof structure of the highest efliciency and practically indestructible. To these ends the machine by which such blocks are in'ade. has a suitable base B with legs to support 'it at a good working elevation, and the mold boX Mis hinged at 2 on the sides and at about the middle of said hase and is adapted to be tilted on said hinges from holding position Fig. 1, to removing position of the inished block` Fig. 5. on theother side of said hinges.

. Slieenn ...on of 4Letters Patent.

particularly pointed out' Figs. 2

To these The said nioldlhox )I is constituted of a number of plates indicated MACHINE ECE ivioLnING CONCRETE BLOCKS.

by 4, 5, 6, 7, 8, respectively. The plate 44 is referred to herein as the main plate because ,it serves as a support for other of said plates as will presently be seen, and inlinolding becomes the bottoni plate of the mold, Fig.

-5. This plate is set at right angles with the so-called end plate `6 and-which-cor'responds to plate 5 at the opposite side, but

' which become front and rear plates respectively in molding position. Then there are .the real side plates or wings -7 and 8, Fig.

6, hinged to main plate 4 on pintles to be easily removable, and adapted to be opened and closed. When closed they are locked by latches 11 on plate 5 adapted to engage on catches 13 on plate 6. Plate 5 has an opening 10 and is'removably hinged at the top ofy main plate 4,A so that plate 4 carries said plate and the side wings 7 and S, and

plates 4 and 6 may be hinged together but are preferably rigid Awith each other. Screws 12 in main frame or base B. form ad` just-able stops for plate 6. Two shaping plates 15 and 16 are shown. are alike in shape and interchangeable and serve to produce the three different forms 'of block, A, A" and A2 shown in Figs. 2 'and 3 according as they are placed in the mold, and also blocks A3, shown in Fig. 7. For example, as seen in Fig. 1, a block is made like that shown Fig. 2, with a recess on one side and a tenon or projection on the other, said tenon and projection having corresponding bevels and proportioned to fit snugly one upon the other if laid together. But they are not designed to be laid in contact but in cement 14 and which corresponds in' depth with the thickness of said inner plates 15 and 3.6. Thus laid the cement spaces the 'said blocks luniformly and the thickness of said platesv determines the depth of the cement. In Fig. 2 each block has a recess 17 and a tenon 1S, whereas in Fig. 3 the block Ai has two tenons 1S and the-block A2 has two recesses 1T. and all these forms are made possible b v the pcculiar construction of said plates 15 and 1G. Both plates 15 and 16 have holes fir openings 9 through the writer corresponding to the hollow of the ock and the .size and shape of core C. The said core is a tubular member in this instance for light. ness and rests and is adapted to slide back and forth on a fixed guideway or frame E Patented Feb. '11 1913. 4Application filed September 27, '1909. Serial No. 519,742. f

T liese plates which is fixed on base B, and enters said` openings 9 in plates 15 `and 16 and forms a eorejinfor for the blockwhen thus positioned,"Fig.`-1, For operation the'said core.

or'cor'e' memberl is provided with rack-bars l210 'ati its side engaged by" toothed sectors 22' rotatably supported in' frame E and opF erated by handles 'orllevers 23.. When the isv 'vanyf .a Y .'vdesign'ation the plates 5 and 6 are' referred toas innera'ndrouter vror front and rearl 'mold has been folded and its parts locked together'and turned.- to molding position', .-Fig. 15 the .core member Cj'is projected into the-mold and the mold' is, then ready to be filled with cement. This doneand the c'ement suiciently`-hardened the core is with`f ed'awn yand fthe mold'ti-lted to dischargingposfition, Fig-V5", invwhich casefthe wings 7 land 8. are swung open andthe plate 5 raised,- substantially as in Fig. 6'. The block A, can

Ithen be remove-d.

The inner-'plates 15 and 16 maybe removy ablyf'aiXed-'to,orwithin'plates 5 and 6v in proved way. .For convenience of plates and the plates 7 and 8 assideplates 'or-rwings.- Y n In Fig. 7 I1 showl ablccklcon'structed'to buildl a l l A shown as of greater depth en one side than on the other, and tw'o such-blocks will give a drawn chimney.l 'This' block isy drawnstill vfarther if desired. To-

screws 21, and the core C takes care of the l* 'A mold-box for concrete block machines adapted to make blocks varying in depth andshape and lconstructed with a Hat bot? tom plate and sideV and end plates, one .'of

Asaidside plates being hinged and having an opening at its center to' pass a core through the same and the two end plates hinged to swing open, in combination with two independently reversible substantially dishshaped shaping 'plates -of uniform thickness and removably supported onithe inside of the said side plates and each shaping plate provided with a hole through its` center adapted to pass a' core -therethrough and-having an offset angeabout.

its edge on a plane parallel to the `the plate,

plates lthroughits flanged port-ion and adjusting screws engaging theV back. ofthe iiangedA portion o f the other of ysaid shaping platesthrough the outer of said side plates to 'x the two shapingplates in various ani 'gular relations.

In test1 in presence of two witnesses.

JOHN D. BARBER.

Witnesses:

M.v FISHER, l?. C. lYIUssUN.A

i bottom of and the inner of the said shaping plates 'removably fixed to one of said side` 5o ony whereof Il aiiiX' 'my signature i 

